S4 K2 Sb2

semiconductor

· S4 K2 Sb2

S4K2Sb2 is an experimental ternary semiconductor compound combining potassium, antimony, and sulfur elements. This material belongs to the family of chalcogenide semiconductors, which are currently of research interest for optoelectronic and solid-state applications due to their tunable band gaps and layered crystal structures. While not yet established in mainstream industrial production, K-Sb-S compounds are being investigated for potential use in photovoltaic devices, infrared detectors, and thermoelectric energy conversion, where their semiconductor properties could offer advantages in niche high-performance applications.

experimental semiconductor researchoptoelectronic devicesinfrared detectorsphotovoltaic developmentthermoelectric materialssolid-state electronics

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3,308.5	ksi	—
Shear Modulus(G)	1,863.3	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.429	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8430	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

S4 K2 Sb2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control